Stanley walker



S. WALKER.

INDICATING APPARATUS.

APPLICATION FILED NOV. 1. 1920.

(1,374,788.. Patented. Apr. 12, 1921.

15 16 44 Q L a 3 2 III I UNITED STATES I.

P E T OFFICE.

STANLEY WALKER, or KINGS LYNNQENGLA D.

INDIGATING APPARATUS.

speci c ti n f as. main. Patented Apr. 12, 1921.

Application filed November 1, 1920. Serial No. 421,150.

To all w ham it may concern Be it known that I, STANLEY WALKER, a

subject of the King of Great Britain and This invention relates to indicating apparatus more particularly foruse in recording or indicating the date of examination, over-.

hauling, or testing or the like of any kind of machinery, for example, aeroplanes,railway stock or bridges, fire appliances, or any other plant that requires periodical attention, overhauling, oiling, &c.

. The apparatus according to the invention comprises one or more plates, dials or the like having the desired indicating marks thereon, and means for setting suchplates or dials to indicate the desired record.

According to one form of the apparatus -two plates or dials may be provided, one

dial having the; numbers 1 to 31 arranged thereon while the other may have the numbers 1 to 12, whereby by suitably setting the dials a given date comprising the day and month may be recorded.

The dials or plates are preferably of circular shape mounted concentrically behind a face plate having openings thereon whereby the desired numbers may be read through said openings. Y I 1 In order to set the dials a detachable key may be providedand the dials when in the set position are held in such position by suitable locking means.

Further features of the invention will be hereafter described and defined in the claims.

The accompanying drawings illustrate the carrying out. of the invention according to two forms by way of example. I

Figures 1 and 2 are a front elevation .and sectional plan of one form of apparatus suitable for indicating the date of oiling machinery;

Fig. 3 is a side view of an operating key for use therewith.

Fig. 3 is a plan view of said key.

Figs. 4 and 5 are front and sectional elevations of a second form for use as a calendar, while Fig. 6 shows details of the clutching devices therefor.

In carrying the invention into effect according to one form of apparatus, shown in Figs. 1 to 3, apair of superposed disks or plates 7. and 8 are provided mounted to rotate about the same axis. The front disk 7 is smaller than the rear-disk 8 whereby the indicating marks on the latter are exposed.

The larger disk 8 is provided with the numbers 1 to 31 thereon so as to indicate days while the smaller disk 7 which indicates months is provided'with the numbers 1"to tral boss 9 having a squared recess 10 therein whereby it may berotated by means of a suitable key.

The smaller disk 7 is provided with a sleeve 11 wherebyit' is mounted upon the central boss 9and in order to rotate it the outer end of the sleeve is provided with grooves'or recesses 12 to accommodate'a pin, key or spanner. a

The disks are mounted behind a face plate 13 made of sheet metal and such plate is dishedor stamped out to provide recessed portions to accommodate the disks." A central recessed portion 141 is also provided having an aperture therein .in which the-sleeve 11 0f the smaller disk 7 fits so as to form a bearing for a said sleeve.

The disks are inclosed by aback plate 15 which 1s fastened to theface plate in any 12. Therear disk8 is provided with a censuitable way, as for instance, by screws; The Y back plateis provided with a central aper-f ture in which a reduced part 16 of the boss 9 on the larger disk is adapted to fit to form a bearing.

Apertures 17 are provided in the face 7 plate 13 whereby the numbers on the disks are exposed to indicate the desired date. Such apertures may be covered with glass, or other suitable material. 7 I

To complete the date the year is preferably painted on the face plate as indicated at18 orimpressed thereon in any other suitable way, or if desiredathird disk may be provided to indicate the year.

In order to hold the disks in attested position the edges thereof are provided with recesses or teeth 19 into which a spring pawl I windows through which the indications on with the above described apparatus. The

spanner or key 24 is formed in the nature of a cranked member having at one end thereof a squared portion 25 to fit the squared recess in the boss 9, and having a pin spanner 26 at the other end to engage the recesses 12 in the sleeve 11.

Referring now to Figs. 4 to 6which show an apparatus arranged as an ordinary calendar three disks 27, 28, 29 are provided to indicate respectively the day of the week, the

day of the month and the month. The disks are provided with central sleeves 30, 31, 32, fitting withineach other, the outer sleeve '30 being mounted to rotate within a bearing 33 in the cover 34.

The cover 34 is recessed to accommodate the disks and is provided with openings or the disks may be read.

The edges of the disks are toothed and engage with spring pawls 35 whereby they are held in position and backward rotation is prevented.

In order to rotate the disks as.desired,'the sleeves 30, 31, 32 are formed with inwardly projecting teeth 36, 37, 38 with which teeth 39 on a clutch or operating spindle 40 are adapted to engage.

Normally the teeth 39 are in engagement with the teeth 37 on the middle sleeve 31 being held in such position by opposed springs 41, 42, bearing against an abutment plate 43, fixed to the back board 44 and also against a collar 45 and a screw head 46 on the pin 40.

In order to engage "the teeth 36 or 38 the pin 40 is pulled outwardly or pushed 'inwardly by means of the operating head 47 which is screwed to the pin or fixed in any other suitable way.

Free spaces are provided between the teeth 36 and 37, 37 and 38, whereby the clutch teeth cannot operate two disks at the same time.

The marking for indicating the year may be impressed 0n the cover in any suitable manner or a detachable platemay be provided which is let into a suitable recess in the cover and is fixed in position by screws.

Instead of using the device to indicate a date, the disks may have any other suitable indicating marks thereon.

For instance, the device may be used to indicate the'movements of a doctor, the inner disk indicating the hour, the middle disk the minutes say to every five, While the outer disk would have such indications as Today, To-morrow, This evening. The name of the doctor could be suitably impressed on the front cover at the top thereof while immediately below a separate reversi ble device may be provided giving the indications Out, In at. 7

Having now described my invention what I claim as new and desire to secure by Letters Patent is 1. In a date reminder or indicator, a plurality of superposed indicating disks rotatable about a common axis, and clutch members carried by the disks and arranged at the centers of the disks adapted to be engagedby clutch members on a key in order to rotate'the disks to show the desired indication, said disks being provided with centrally disposed sleeves which carry the clutch members, and the clutch members being spaced apart to permit operation of one disk by the key without operating an ad-' jacent disk.

2. A date reminder comprising a plurality of superposed indicating disks each provided at its center. with a sleeve, the sleeves of said disks being concentric with one an other and each sleeve being provided with clutch members, a stem rotatably mounted in said sleeves and provided with lugs designed to engage said clutch members for turning the same, and'a plurality of springs mounted on said stem for holding the stem in normal position out of engagement with either of said clutch members.

In testimony whereof I have signed my name to this specification.

STANLEY WALKER. 

